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Degradation of 1,4-dioxane in water using TiO2 based photocatalytic and H2O2/UV processes

Coleman, Heather, Vimonses, V., Leslie, G. and Amal, R. (2007) Degradation of 1,4-dioxane in water using TiO2 based photocatalytic and H2O2/UV processes. Journal of Hazardous Materials, 146 (3). pp. 496-501. [Journal article]

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URL: http://dx.doi.org/10.1016/j.jhazmat.2007.04.049

DOI: doi:10.1016/j.jhazmat.2007.04.049

Abstract

1,4-dioxane is a synthetic compound found in industrial effluent and subsequently contaminates water bodies due to its high solubility and high volatility. It is of concern due to its toxic and hazardous nature and has been listed as a class 2B carcinogen. This study involved optimisation of the photocatalytic and H2O2/UVC processes for 1,4-dioxane removal. Different photocatalysts and loadings were investigated for the degradation of low concentrations of 1,4-dioxane in water including a commercial P25, a synthesised magnetic photocatalyst and an immobilised sol–gel system. A commercial catalyst (Degussa P25) was the most efficient. A lifetime study of the sol–gel reactor showed that the coating was stable over the time period studied. The optimum H2O2 concentration in the H2O2/UVC process was found to be 30 ppm. The addition of H2O2 to the photocatalytic process for 1,4-dioxane removal caused a decrease in rate for the commercial P25 photocatalyst and an increase in rate for the lab-made magnetic photocatalyst.

Item Type:Journal article
Keywords:1,4-dioxane; Titanium dioxide photocatalysis; P25; Magnetic photocatalyst; Immobilised sol–gel system; H2O2/UV
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Engineering
Research Institutes and Groups:Engineering Research Institute
Engineering Research Institute > Nanotechnology & Integrated BioEngineering Centre (NIBEC)
ID Code:35707
Deposited By: Dr Heather Coleman
Deposited On:08 Sep 2016 08:12
Last Modified:08 Sep 2016 08:12

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